Temperatures are expected to reach 35°C in Johannesburg, 36°C in Vereeniging, and 37°C in Pretoria. This is after the heatwave intensified on Monday afternoon, with temperatures averaging 35°C, while Pretoria reached a maximum of 36°C.

This is the third heatwave of the spring/summer season in South Africa after temperatures reached 41°C in Upington, 40°C in Beaufort West and Graaf-Reniet, 39°C in Rustenburg and 35°C in Pretoria three weeks ago on 13 November.

Temperatures are expected to start easing off from Wednesday although it will still be very hot.